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How to Reset the Service Light on a Mercedes C-Class W203

Model: Mercedes Classe C W203 - Years: 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
Part: Service warning light

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Video tutorial

Manually resetting the service light that appears on the instrument cluster of your Mercedes C-Class W203 is really simple, and with the following procedure, you can complete the operation without any difficulty. First, get in the car and insert the key, then turn it to the second position to power on the instrument cluster.

Next, locate and hold down the button on the left side of the cluster for about fifteen seconds. Wait for the manual reset of the service light to complete, and finally, turn off the instrument cluster.


Updated on 15 October 2026 by ScegliAuto


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Glow plugs, as the name suggests, raise the temperature of the engine in diesel vehicles to allow for easier starting. The manufacturer, in this case, Fiat for the Ducato 2.3 Multijet, specifies how often they should be replaced, and a warning light will illuminate when it's time. This work is carried out under the bonnet. First, remove the upper engine cover, then lift the coil and, using a socket wrench of the appropriate size, unscrew the glow plug to remove it from the base, followed by installing the new one.

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by ScegliAuto

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